BP Disaster Solved -- giganto pita....

Proctologically ViolatedÂ©Â® · 2009-01-25T16:21:49+00:00

Awl -- Wound up drilling it out -- and a bit of a saga. I wasn't there (thank gawd), but someone who knew a little about machines was.They tried jamming the nut, to simply unscrew from the top, they weighed disassembly vs. drilling, ito the time/hassle factor/putting it back together correctly, etc, and opted for the brute force method.I mentioned previously there was a second draw bar, in case the stuck one was sacrificed, so they did file tests to see if it was hard, and where. Soft. So, they commenced trying to drill out the thread/nut from inside.But, it turned out it the test bar was a cheapie import, and the thread on the original draw bar was hard like an sob, so the drill just skated.So they took off whatever could be readily removed on top (mostly the motor cover), cut off the hex, and drilled from up top.Even THAT was hard, but not as hard as the thread. And then, there was a roll pin, on top of it all.All in all, about 3" or so had to be progressively drilled, up to about 1/2" dia. Took hours, the whole thing got so hot the surrounding areas turned dark blue. Boucou dulled bits.So when the bar finally came out, they tested the r8 nut, and it was on so tight....HOW TIGHT WAS IT ON????It was on so tight, that with the drawbar in a vise, and plenty of leverage on a large wrench, the nut *still* barely came off!All in all, about a 3-4 hour miserable miserable job.Turns out, someone did remove the spacer washer on top, and the draw bar bottomed out on the r8 collet, locking up good.Then, when he tried removing it, it spun out the nut/thread part of the collet.Bleeve me, he is never going to use 2-pc R8s again. In our combined collection of R8s, I would say at least half are 2 pc, in one style or another.Has everyone checked their sets of R8s??? :)Again, thanks for all the input.

Jan 25, 2009 23 Replies

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Bill Noble 17 years ago

I believe mine too is Royal - the pin in the 5C (yes, I had it backwards, was tired) is a rectangular piece like a key, with a small round pin that goes into a hole in the adapter that fits into the 5 MT adapter - The key part is almost worn off - I presume that I could make one, but this is one of those little things that would take forever and it's just gotta be pretty inexpensive compared to a day's work. I have heard of folks getting a bag of them somehow. maybe contacting Royal is the way to go.

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Pete Keillor 17 years ago

My Royal 5C adapter works fine without the pin. Mine was just a straight pin, I think. It was hard to tell by the time I drove it out. I do keep a collet wrench handy, but rarely need it, and I've checked the fit of all my collets in my closer tube.

Pete Keillor

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Proctologically ViolatedÂ©Â® 17 years ago

That's an excellent tip that I'll have to remember. Also, masonry bits are really easy to sharpen, even without a green wheel.

The cheapie sets of 5 (from 1/8 to about 5/16-3/8 -- 99c in, you guessed,

99c stores) will allow for progressive drilling, as well.

In this case, the only problem would have been their short length, altho I'm sure you can get pricey-er industrial ones much longer, as well as SDS shank, which are pretty long.

And actually, for non-critical bull work, you could just weld CR or even HR rod onto the shank!

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F. George McDuffee 17 years ago

--------- Additional thought for all us cheap screw machinists, a short 45 degree lathe boring bar makes a pretty good fly cutter holder.

Unka' George [George McDuffee]

------------------------------------------- He that will not apply new remedies, must expect new evils: for Time is the greatest innovator: and if Time, of course, alter things to the worse, and wisdom and counsel shall not alter them to the better, what shall be the end?

Francis Bacon (1561-1626), English philosopher, essayist, statesman. Essays, "Of Innovations" (1597-1625).

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